Business Segment Reporting (Tables)

12 Months Ended

Dec. 31, 2019

Segment Reporting [Abstract]

Financial Information of Business Groups

Year ended December 31,	Consumer Bank									Commercial Bank
dollars in millions	2019			2018			2017			2019			2018			2017
SUMMARY OF OPERATIONS
Net interest income (TE)	$	2,366		$	2,306		$	2,133		$	1,621		$	1,657		$	1,708
Noninterest income	922			915			976			1,390			1,328			1,272
Total revenue (TE) (a)	3,288			3,221			3,109			3,011			2,985			2,980
Provision for credit losses	188			147			145			118			102			84
Depreciation and amortization expense	97			103			108			135			139			103
Other noninterest expense	2,078			2,143			2,167			1,388			1,430			1,393
Income (loss) from continuing operations before income taxes (TE)	925			828			689			1,370			1,314			1,400
Allocated income taxes (benefit) and TE adjustments	219			196			255			223			207			373
Income (loss) from continuing operations	706			632			434			1,147			1,107			1,027
Income (loss) from discontinued operations, net of taxes	—			—			—			—			—			—
Net income (loss)	706			632			434			1,147			1,107			1,027
Less: Net income (loss) attributable to noncontrolling interests	—			—			—			—			—			—
Net income (loss) attributable to Key	$	706		$	632		$	434		$	1,147		$	1,107		$	1,027
AVERAGE BALANCES (b)
Loans and leases	$	32,536		$	31,307		$	32,092		$	57,988		$	55,828		$	52,783
Total assets (a)	36,096			34,523			35,360			66,122			63,684			59,956
Deposits	72,544			68,821			66,711			36,212			33,675			33,781
OTHER FINANCIAL DATA
Expenditures for additions to long-lived assets (a), (b)	$	150		$	(38	)	$	90		$	(8	)	$	(17	)	$	69
Net loan charge-offs (b)	157			149			152			128			85			55
Return on average allocated equity (b)	21.30		%	19.24		%	13.19		%	24.99		%	24.94		%	23.91		%
Return on average allocated equity	21.30			19.24			13.19			24.99			24.94			23.91
Average full-time equivalent employees (c)	9,292			9,957			9,990			2,232			2,449			2,331

Year ended December 31,	Other										Key
dollars in millions	2019				2018			2017			2019			2018			2017
SUMMARY OF OPERATIONS
Net interest income (TE)	$	(46	)		$	(23	)	$	(11	)	$	3,941		$	3,940		$	3,830
Noninterest income	147				272			230			2,459			2,515			2,478
Total revenue (TE) (a)	101				249			219			6,400			6,455			6,308
Provision for credit losses	139				(3		)	—			445			246			229
Depreciation and amortization expense	142				158			173			374			400			384
Other noninterest expense	61				2			154			3,527			3,575			3,714
Income (loss) from continuing operations before income taxes (TE)	(241		)		92			(108		)	2,054			2,234			1,981
Allocated income taxes (benefit) and TE adjustments	(96		)		(28		)	62			346			375			690
Income (loss) from continuing operations	(145		)		120			(170		)	1,708			1,859			1,291
Income (loss) from discontinued operations, net of taxes	9				7			7			9			7			7
Net income (loss)	(136		)		127			(163		)	1,717			1,866			1,298
Less: Net income (loss) attributable to noncontrolling interests	—				—			2			—			—			2
Net income (loss) attributable to Key	$	(136	)	(d)	$	127		$	(165	)	$	1,717		$	1,866		$	1,296
AVERAGE BALANCES (b)
Loans and leases	$	987			$	1,203		$	1,490		$	91,511		$	88,338		$	86,365
Total assets (a)	40,961				38,605			38,403			143,179			136,812			133,719
Deposits	1,274				2,555			2,454			110,030			105,051			102,946
OTHER FINANCIAL DATA
Expenditures for additions to long-lived assets (a), (b)	$	103			$	103		$	108		$	245		$	48		$	267
Net loan charge-offs (b)	139				—			1			424			234			208
Return on average allocated equity (b)	(1.66		)%		1.62		%	(2.25		)%	10.27		%	12.29		%	8.47		%
Return on average allocated equity	(1.56		)		1.71			(2.16		)	10.32			12.33			8.51
Average full-time equivalent employees (c)	5,521				5,774			6,094			17,045			18,180			18,415

(a) Substantially all revenue generated by our major business segments is derived from clients that reside in the United States. Substantially all long-lived assets, including premises and equipment, capitalized software, and goodwill held by our major business segments, are located in the United States.

(b) From continuing operations.

(c) The number of average full-time equivalent employees was not adjusted for discontinued operations.

(d)

Other segments included $106 million provision for credit loss, net of tax, related to a previously disclosed fraud incident.